Understand the Iron Carbon Diagram (Leaving Cert Engineering): Flashcards
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Steel composition
Steel composition
Alloy of iron and carbon
Properties of pure iron
Properties of pure iron
Soft and ductile
Properties of carbon
Properties of carbon
Extremely hard and brittle
Maximum carbon content in steel
Maximum carbon content in steel
No more than
Four main components of iron-carbon diagram
Four main components of iron-carbon diagram
Ferrite, austenite, cementite, pearlite
Ferrite crystal structure
Ferrite crystal structure
BCC (Body Centred Cubic)
Temperature range for ferrite
Temperature range for ferrite
Below 910°C
Austenite crystal structure
Austenite crystal structure
FCC (Face Centred Cubic)
Temperature range for austenite
Temperature range for austenite
Above 910°C
Cementite properties
Cementite properties
Hard and brittle, carbon-rich
Pearlite composition
Pearlite composition
Alternating layers of ferrite and cementite
Eutectoid point carbon % and temperature
Eutectoid point carbon % and temperature
carbon, 720°C
Low carbon steel () composition
Low carbon steel () composition
Primarily ferrite with some pearlite